Flexible cover for a calculator



FIG. 1 is a front view of a flexible cover for a calculator;

FIG. 2 is a side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a rear view thereof, shown with a portion bent outwards; and,

FIG. 5 is a bottom view thereof.

The broken lines shown in FIG. 4 depict a portion of the flexible cover for a calculator which forms no part of the claimed design. 

The ornamental design for a flexible cover for a calculator, as shown and described. 